Percocet contains oxycodone, a Schedule II controlled substance. As an opioid, Percocet exposes users to the risks of addiction, abuse, and misuse [see DRUG ABUSE AND DEPENDENCE]. Although the risk of addiction in any individual is unknown, it can occur in patients appropriately prescribed Percocet.
Use a waterpik! It is a miracle for cleaning under the gumline and in between teeth. You'll actually smell that awful smell coming out, but do it 2x a day and it'll fix that kind of odor. Don't forget, it doesn't replace flossing. All pharmacies and walmart, etc sell them.
1 Place dental floss between your back teeth and then smell the floss.  While looking at the mirror, grab the tip of your tongue with a Kleenex and pull it out as far you can. If you see that the very back of your tongue is whitish in color, it may be a sign that you have bad breath.